Inventor · disambiguated record
Constance J. Chang-Hasnain
Also filed as: CHANG-HASNAIN CONSTANCE · CHANG-HASNAIN CONSTANCE J · CHANG-HASNAIN CONSTANCE JUI-HUA
30 granted patents·6 pending applications·1,028 citations·filing 1989–2023
98Inventor score
Files withBANDWIDTH9 INC8UNIV CALIFORNIA5UNIV LELAND STANFORD JUNIOR5BANDWIDTH93ZHEJIANG BERXEL PHOTONICS CO LTD3
Top patents by PatentIndex Score
36 records- 0193US7497992B2Detection of biochemical interactions on a biosensor using tunable filters and tunable lasersSRU BIOSYSTEMS INC·Filed 2003·Granted Mar 3, 2009·50 cites·20 claims
- 0291US5771253AHigh performance micromechanical tunable verticle cavity surface emitting laserUNIV LELAND STANFORD JUNIOR·Filed 1997·Granted Jun 23, 1998·113 cites·7 claims
- 0388US6535541B1Vertical cavity apparatus with tunnel junctionBANDWIDTH9 INC·Filed 2000·Granted Mar 18, 2003·74 cites·55 claims
- 0488US5629951AElectrostatically-controlled cantilever apparatus for continuous tuning of the resonance wavelength of a fabry-perot cavityFiled 1995·Granted May 13, 1997·114 cites·25 claims
- 0587US6233263B1Monitoring and control assembly for wavelength stabilized optical systemBANDWIDTH9·Filed 1999·Granted May 15, 2001·86 cites·34 claims
- 0686US6487230B1Vertical cavity apparatus with tunnel junctionBANDWIDTH9 INC·Filed 2000·Granted Nov 26, 2002·60 cites·101 claims
- 0782US6493373B1Vertical cavity apparatus with tunnel junctionBANDWIDTH9 INC·Filed 2000·Granted Dec 10, 2002·41 cites·125 claims
- 0882US5541756AApparatus and method for routing optical signals through wavelength-coding in a self-routed wavelength addressable networkUNIV LELAND STANFORD JUNIOR·Filed 1994·Granted Jul 30, 1996·63 cites·22 claims
- 0980US5960024AVertical optical cavities produced with selective area epitaxyBANDWIDTH UNLIMITED INC·Filed 1998·Granted Sep 28, 1999·48 cites·25 claims
- 1079US6493372B1Vertical cavity apparatus with tunnel junctionBANDWIDTH9 INC·Filed 2000·Granted Dec 10, 2002·33 cites·87 claims
- 1178US6487231B1Vertical cavity apparatus with tunnel junctionBANDWIDTH9 INC·Filed 2000·Granted Nov 26, 2002·31 cites·113 claims
- 1277US5546209AOne-to-many simultaneous and reconfigurable optical two-dimensional plane interconnections using multiple wavelength, vertical cavity, surface-emitting lasers and wavelength-dependent detector planesUNIV SOUTHERN CALIFORNIA·Filed 1994·Granted Aug 13, 1996·61 cites·26 claims
- 1376US6493371B1Vertical cavity apparatus with tunnel junctionBANDWIDTH9 INC·Filed 2000·Granted Dec 10, 2002·27 cites·110 claims
- 1476US6275513B1Hermetically sealed semiconductor laser deviceBANDWIDTH 9·Filed 1999·Granted Aug 14, 2001·46 cites·55 claims
- 1573US6490311B1Vertical cavity apparatus with tunnel junctionBANDWIDTH9 INC·Filed 2000·Granted Dec 3, 2002·22 cites·109 claims
- 1669US5760419AMonolithic wavelength meter and photodetector using a wavelength dependent reflectorUNIV LELAND STANFORD JUNIOR·Filed 1996·Granted Jun 2, 1998·37 cites·28 claims
- 1766US5539759ASingle mode laser with a passive antiguide regionUNIV LELAND STANFORD JUNIOR·Filed 1994·Granted Jul 23, 1996·21 cites·21 claims
- 1864US6760357B1Vertical cavity apparatus with tunnel junctionBANDWIDTH9 INC·Filed 2000·Granted Jul 6, 2004·11 cites·72 claims
- 1964US6222871B1Vertical optical cavities produced with selective area epitaxyBANDWIDTH9·Filed 1999·Granted Apr 24, 2001·23 cites·9 claims
- 2060US12046873B2Air cavity dominant VCSELs with a wide wavelength sweepUNIV CALIFORNIA·Filed 2020·Granted Jul 23, 2024·0 cites·19 claims
- 2159US12068580B2Oxide spacer HCG VCSELS and fabrication methodsUNIV CALIFORNIA·Filed 2020·Granted Aug 20, 2024·0 cites·26 claims
- 2258US2009269244A1Detection of biochemical interactions on a biosensor using tunable filters and tunable lasersSRU BIOSYSTEMS INC THE REGENTS·Filed 2009·Application pending·0 cites
- 2354US6174749B1Fabrication of multiple-wavelength vertical-cavity opto-electronic device arraysUNIV CALIFORNIA·Filed 1998·Granted Jan 16, 2001·19 cites·24 claims
- 2453US12136798B2Vertical cavity surface emitting device with a buried index guiding current confinement layerUNIV CALIFORNIA·Filed 2020·Granted Nov 5, 2024·0 cites·23 claims
- 2549US2024332905A1Vertical Cavity Surface Emitting LaserZHEJIANG BERXEL PHOTONICS CO LTD·Filed 2023·Application pending·0 cites
- 2648US11881683B2Epitaxial growth on a gallium arsenide phosphide capped material on a gallium arsenide substrateUNIV CALIFORNIA·Filed 2020·Granted Jan 23, 2024·0 cites·32 claims
- 2745US2024045100A1Programmable Structured Light Generator, Photoelectric Device Having Same, And Manufacturing MethodSHENZHEN BERXEL PHOTONICS CO LTD·Filed 2023·Application pending·0 cites
- 2844US5029176AMonolithic multiple-wavelength laser arrayBELL COMMUNICATIONS RES·Filed 1990·Granted Jul 2, 1991·14 cites·9 claims
- 2943US2024418918A1High Contrast Grating Polarizer With Adjustable Polarization CharacteristicsZHEJIANG BERXEL PHOTONICS CO LTD·Filed 2023·Application pending·0 cites
- 3040US2024329284A1High Contrast Grating PolarizerZHEJIANG BERXEL PHOTONICS CO LTD·Filed 2023·Application pending·0 cites
- 3139US9161429B2Compact ion source neutron generatorSCHENKEL THOMAS·Filed 2012·Granted Oct 13, 2015·0 cites·14 claims
- 3238US6226425B1Flexible optical multiplexerBANDWIDTH9·Filed 1999·Granted May 1, 2001·10 cites·53 claims
- 3337US4922500ACross-coupled quantum-well stripe laser arrayBELL COMMUNICATIONS RES·Filed 1989·Granted May 1, 1990·8 cites·15 claims
- 3435US6148268AMethod for quality control and yield enhancementFiled 1998·Granted Nov 14, 2000·14 cites·12 claims
- 3532US2001043629A1Opto-electronic devices with multiple oxide aperturesFiled 2001·Application pending·0 cites
- 3630US5627852ASemiconductor laser geometry for broad-angle far-field addressingUNIV LELAND STANFORD JUNIOR·Filed 1995·Granted May 6, 1997·2 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →